BackForwardInstrument:  PEM/VMAG 

Instrument details
Acronym PEM/VMAG
Full name Particle Environment Monitor - Vector Magnetometer
Purpose To monitor the magnetic field at platform level
Short description Vector magnetometer covering the range from ±4 to ±65,536 nT with a resolution of ±1 nT @ maximum of the dynamics
Background Component of the UARS Particle Environment Monitor (PEM)
Scanning Technique In-situ measurement in a drifting LEO
Resolution N/A
Coverage / Cycle Sampling at 0.2 s intervals
Mass Power Data Rate


Providing Agency NASA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1991 to 2005
Last update: 2016-03-21
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Solar and space environment monitors
  • Field or radiowave sensor
WIGOS Subcomponents
  • Subcomponent 1
  • In-situ plasma probes, and energetic particle spectrometers and magnetometers at GEO and LEO, and magnetic field at GEO
  • Magnetometer at LEO
Mission objectives
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Geomagnetic field3 - highNo specific limitation.Platform, vectorial, wide dynamics, high resolution